Progressive failure analysis of fibrous composite materials and structures

A brief description is given of the modifications implemented in the PAFAC finite element program for the simulation of progressive failure in fibrous composite materials and structures. Details of the memory allocation, input data, and the new subroutines are given. Also, built-in failure criteria for homogeneous and fibrous composite materials are described

Non-agricultural Market Access: A South Asian Perspective

A key element of the Doha Round of trade negotiations is liberalisation of trade in industrial products, commonly known as non-agricultural market access (NAMA). These negotiations are important for developing countries as these will determine the market access opportunities through which they can improve their growth prospects. This paper examines the key issues of NAMA from the South Asian perspective, outlines a negotiating strategy for increased market access, and spells out some policy implications.

Observations on Reproduction, Aestivation and Polymor-phism in the snail, Limicolaria Martensiana (Smith) from the Queen Elizabeth National Park, Uganda

Volume: 2

Asian Pacific Islander Americans and Affirmative Negative Action

With a focus on the Asian and Pacific Islander American (APIA) community, I begin by defining affirmative action and tracing its history and metamorphosis over the past 50 years. What once was a policy to support marginalized groups like the APIA community is now evolving into negative action – a tool to prevent mobility and access to higher education. Negative action, which stretches back to the 1980s, is a way for institutions of higher education to prevent the admission of candidates of Asian or Pacific Islander descent because of their rising numbers in enrollment and their accompanying perceived success. This paper spotlights the University of California, Los Angeles and Berkeley campuses, and how the Board of Regents has modified both eligibility and admission policies that may seem to promote equality and equity for all candidates, but actually support the practice of negative action. Grounded in the model minority myth, negative action maintains the status quo of White dominance. This paper will address the existence and consequences of negative action, its connection with the model minority myth, and its potential future impacts

Experimental and analytical investigation of the fracture processes of boron/aluminum laminates containing notches

Experimental results for five laminate orientations of boron/aluminum composites containing either circular holes or crack-like slits are presented. Specimen stress-strain behavior, stress at first fiber failure, and ultimate strength were determined. Radiographs were used to monitor the fracture process. The specimens were analyzed with a three-dimensional elastic-elastic finite-element model. The first fiber failures in notched specimens with laminate orientation occurred at or very near the specimen ultimate strength. For notched unidirectional specimens, the first fiber failure occurred at approximately one-half of the specimen ultimate strength. Acoustic emission events correlated with fiber breaks in unidirectional composites, but did not for other laminates. Circular holes and crack-like slits of the same characteristic length were found to produce approximately the same strength reduction. The predicted stress-strain responses and stress at first fiber failure compared very well with test data for laminates containing 0 deg fibers

M-GEAR: Gateway-Based Energy-Aware Multi-Hop Routing Protocol for WSNs

In this research work, we advise gateway based energy-efficient routing protocol (M-GEAR) for Wireless Sensor Networks (WSNs). We divide the sensor nodes into four logical regions on the basis of their location in the sensing field. We install Base Station (BS) out of the sensing area and a gateway node at the centre of the sensing area. If the distance of a sensor node from BS or gateway is less than predefined distance threshold, the node uses direct communication. We divide the rest of nodes into two equal regions whose distance is beyond the threshold distance. We select cluster heads (CHs)in each region which are independent of the other region. These CHs are selected on the basis of a probability. We compare performance of our protocol with LEACH (Low Energy Adaptive Clustering Hierarchy). Performance analysis and compared statistic results show that our proposed protocol perform well in terms of energy consumption and network lifetime.Comment: IEEE 8th International Conference on Broadband and Wireless Computing, Communication and Applications (BWCCA'13), Compiegne, Franc

จะนะโมเดลในภารกิจพิชิตโควิด-19:กรณีศึกษา,โรงพยาบาลชุมชนจากความร่วมมือระหว่างหมอกับผู้นำการศึกษาศาสนาอิสลาม ผู้เขียน:นายอับดุลสุโก ดินอะ

จะนะโมเดลในภารกิจพิชิตโควิด-19:กรณีศึกษา,โรงพยาบาลชุมชนจากความร่วมมือระหว่างหมอกับผู้นำการศึกษาศาสนาอิสลาม ผู้เขียน:นายอับดุลสุโก ดินอะ บทคัดย่อ                                        การศึกษาครั้งนี้มีวัตถุประสงค์หลัก คือ เพื่อทราบโมเดลต่างๆของการจัดตั้งโรงพยาบาลสนามของชุมชนจากความร่วมมือระหว่างหมอและผู้นำการศึกษาศาสนาอิสลามและนำเสนอนโยบายสาธารณะในการแก้ปัญหา ใช้วิธีแลกเปลี่ยนเรียนรู้    การสนทนากลุ่ม (focus group) และการสัมภาษณ์เชิงลึก (In-depth Interview) กับตัวแทนผู้ปฏิบัติงาน    และเครือข่ายองค์กรภาคประชาชนภาคใต้                    ผลการศึกษาพบว่า: 1.       มี 3 โมเดลต่างของการจัดตั้งโรงพยาบาลสนามของชุมชน1.1 ศูนย์กักระดับองค์กร (OIC) โรงเรียนรุ่งโรจน์วิทยา 1.2 ศูนย์กักชุมชน CIC มัสยิดโคกเค็ต 1.3 โรงพยาบาลสนามโรงเรียนศาสนบำรุง2.นโยบายสาธารณะ แต่ละพื้นที่ ในประเทศไทยจัดตั้งโรงพยาบาลสาม โมเดลที่บริหารโดยชุมชนเพื่อชุมชนคำสำคัญ โรงพยาบาล หมอ ผู้นำการศึกษาศาสนาอิสลาม และโควิด -